So if there are UL Listed CBs only good for supplementary protection, back to my original question....without looking it up on UL's database, is there a way to confirm if it's supplemental or branch circuit.
Thank goodness for nice people :-)!! > On Dec 3, 2013, at 2:34 PM, "Brian Oconnell" <oconne...@tamuracorp.com> wrote: > > You people are much too nice and way too helpful. > Shall I provide dirtbag lessons (am fully qualified to instruct) on how to > answer questions without providing answer? > > But there are, in fact, listed CBs intended for supp interrupt protect. > > Brian > > From: Jim Morrison [mailto:jmorri...@qps.ca] > Sent: Tuesday, December 03, 2013 12:28 PM > To: jral...@productsafetyinc.com > Cc: EMC-PSTC@LISTSERV.IEEE.ORG; Brian Oconnell > Subject: Circuit Breakers - Branch Circuit Protection vs Supplementary > > Hi John: > If the device has a UL - , this would indicate approval to UL489 & suitable > for a branch circuit device. > > If only marked - , the device would be approved to UL1077 and only recognized > as a supplementary protector & not suitable for a branch circuit. > > Regards > > Jim Morrison C.E.T. C.E.I. > > Chief of Engineering / Vice President - Field Evaluations/Engineering | QPS > Evaluation Services Inc. | 81 Kelfield Street, Unit 8, Toronto, Ontario, > M9W 5A3 - OSHA Recognized NRTL > Office (416-241-8857) | Cell ( 416-318-9104) | Fax (416-241-0682) | Toll Free > ( 1-877-746-4777) | Website: www.qps.ca ; email jmorri...@qps.ca > > > -----Original Message----- > From: Brian Oconnell [mailto:oconne...@tamuracorp.com] > Sent: December-03-13 1:38 PM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: [PSES] Circuit Breakers - Branch Circuit Protection vs > Supplementary > > 1. UL 'White' book > 2. UL marking guide for CBs > 3. The particular standard used (489/1077/508x) 4. iaei.org 5. mfr spec sheet > 6. Vulcan mind-meld > > Brian > > From: jral...@productsafetyinc.com [mailto:jral...@productsafetyinc.com] > Sent: Tuesday, December 03, 2013 10:13 AM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: [PSES] Circuit Breakers - Branch Circuit Protection vs Supplementary > > Hi, > > Is there a way to confirm if a CB is good for Branch Circuit Protection vs > Supplementary by the markings on the device? Basically I want to be able to > confirm in the field. > > I reviewed UL's guide cards for both (Branch Circuit - DIVQ and Supplementary > - QVNU2). There are markings for DIVQ, but none stated for QVNU2. The > Listing mark vs Recognition mark would be the obvious one, but I'm told you > can have Listed CB's that are not good for Branch Circuit Protection. > > I greatly appreciate the input. > > Thank you, > > John > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://www.ieee-pses.org/list.html (including how to > unsubscribe) > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
